I'm not sure if you're looking for a specific answer, but in my perspective...
They are similar in that they <em>introduce </em>a particular topic. Usually both <em>establish </em>the "playing field" the topic will be discussed on. This included boundaries and opinions etc.
They are different in that argumentative thesis statements are <em>one sided </em>and the it's purpose is to <em>defend</em> their argument. They usually begin by introducing a dispute or a question and <u>establishing their position</u>/what they believe.
Explanatory thesis statements usually<u> lay down the foundation for discussion</u> and introduce in <em>detail </em>what the reader and author will ponder. They <em>explain.</em>
